Synthesis of amino acid derivatives of 5-alkoxy-3,4-dihalo-2(5<i>H</i>)-furanones and their preliminary bioactivity investigation as linkers
作者:Shi-He Luo、Kai Yang、Jian-Yun Lin、Juan-Juan Gao、Xin-Yan Wu、Zhao-Yang Wang
DOI:10.1039/c9ob00736a
日期:——
investigated by comparison with other 2(5H)-furanone compounds by constructing C-O/C-S bonds. The preliminary results of the biological activity assay by the MTT method on a series of cancer cell lines in vitro reveal that the introduction of amino acids basically has no toxic effect. This can lead to these 2(5H)-furanonederivatives being further well-linked with other bioactive moieties with amino or hydroxy
Quick construction of a C–N bond from arylsulfonyl hydrazides and C<sub>sp2</sub>–X compounds promoted by DMAP at room temperature
作者:Kai Yang、Juan-Juan Gao、Shi-He Luo、Han-Qing Wu、Chu-Ming Pang、Bo-Wen Wang、Xiao-Yun Chen、Zhao-Yang Wang
DOI:10.1039/c9ra03403j
日期:——
A mild C–N coupling reaction with arylsulfonyl hydrazides and 2(5H)-furanones shows good yields, excellent reaction regioselectivity and functional group tolerance.
Palladium-Catalyzed Desulfitative Arylation of 5-Alkoxy-3,4-dibromo-2(5<i>H</i>)-furanone with Sodium Arylsulfinates
作者:Jie Shi、Xiao-Dong Tang、Yan-Cheng Wu、Hua-Nv Li、Liu-Juan Song、Zhao-Yang Wang
DOI:10.1002/ejoc.201403404
日期:2015.2
A palladium-catalyzeddesulfitative arylation reaction of 5-alkoxy-3,4-dibromo-2(5H)-furanones to provide 5-alkoxy-4-aryl-3-bromo-2(5H)-furanones is reported. This reaction has a high reaction site selectivity, which can realize arylation at the C4-position. Various sodiumarylsulfinates are well tolerated under the mild reaction conditions. The current study makes the arylation of general alkenyl
Light-Induced Formation/Scission of C–N, C–O, and C–S Bonds Enables Switchable Stability/Degradability in Covalent Systems
作者:Yu Hai、Hebo Ye、Ziyi Li、Hanxun Zou、Hanwei Lu、Lei You
DOI:10.1021/jacs.1c09958
日期:2021.12.8
dithienylethene fused aldehyde ring–chain tautomers turns on the reactivity, incorporating/releasing amines, alcohols, and thiols reversibly with high efficiency, respectively. Upon photocycloreversion the system is shifted to kinetically locked out-of-equilibrium form, enabling remarkable robustness of covalent assemblies. Reaction coupling allows remote and directional control of a diverse range
Copper(I)-Catalyzed Alkyl- and Arylsulfenylation of 3,4-Dihalo-2(5<i>H</i>
)-furanones (X=Br, Cl) with Sulfoxides under Mild Conditions
作者:Liang Cao、Shi-He Luo、Han-Qing Wu、Liu-Qing Chen、Kai Jiang、Zhi-Feng Hao、Zhao-Yang Wang
DOI:10.1002/adsc.201700600
日期:2017.9.4
An efficient copper(I)/proline sodium salt‐catalyzed alkyl‐ and arylsulfenylation of C(sp2)–X 3,4‐dihalo‐2(5H)‐furanone compounds with sulfoxides is described. For inexpensive C(sp2)–Cl compounds, there is also a satisfactory reactivity with the moderate yields. This transformation provides a novel approach for the utilization of sulfoxides (not only DMSO) as sulfur source at mild temperatures without